Buck Converter Step-Down DC Voltage

A DC/DC buck converter steps down DC voltage in an efficient, regulated way. Unlike transformers, which easily raise or lower AC voltage and current, DC systems need switching power converters to change voltage levels.

The buck converter works by chopping the input DC voltage with a series input ...

Buck converters generate a DC output voltage that is less than the DC input. In other words, buckling down or decreasing the supply voltage. Commonly used linear regulators step down voltage by dissipating power as heat in a resistor, which becomes very inefficient with large differences between the input and output voltages. While resistive com...